Activity variable
[经] 效率变量, 活动变量
🧩 词语组成解析
🗣️ 情景例句
You may be offered coffee, and then you should immediately announce the reason for your visit.
他们会给你冲咖啡，然后你应该尽快说明来意。
He likes playing ping-pong.
他喜欢去打乒乓球。
I will continue my learning, though I am tired of learning English.
尽管我很烦英语，我还是要学它。